kc3-lang/ftgl/src/FTSize.cpp

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• Hash : 9013e3ec
  Author :
  Date : 2002-06-20T08:22:06
  

  Changes for VTK Removed tabs Removed mmgr Optimisations for loading pixel based fonts Minor changes

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• src/FTSize.cpp

• #include    "FTSize.h"
  
  
  FTSize::FTSize()
  :   ftFace(0),
      size(0),
      err(0)
  {}
  
  
  FTSize::~FTSize()
  {}
  
  
  bool FTSize::CharSize( FT_Face* face, unsigned int point_size, unsigned int x_resolution, unsigned int y_resolution )
  {
      ftFace = face;
      size = point_size;
      err = FT_Set_Char_Size( *ftFace, 0L, point_size * 64, x_resolution, y_resolution);
      
      ftSize = (*ftFace)->size;
      
      return !err;
  }
  
  
  int FTSize::Ascender() const
  {
      return ftSize->metrics.ascender >> 6;
  }
  
  
  int FTSize::Descender() const
  {
      return ftSize->metrics.descender >> 6;
  }
  
  
  int FTSize::Height() const
  {
      if( FT_IS_SCALABLE((*ftFace)))
      {
          float height = ( (*ftFace)->bbox.yMax - (*ftFace)->bbox.yMin)
                       * ( (float)ftSize->metrics.y_ppem / (float)(*ftFace)->units_per_EM);
                       
          return static_cast<int>(height);
      }
      else
      {
          return ftSize->metrics.height >> 6;
      }
  }
  
  
  int FTSize::Width() const
  {
      if( FT_IS_SCALABLE((*ftFace)))
      {
          float width = ( (*ftFace)->bbox.xMax - (*ftFace)->bbox.xMin)
                      * ( (float)ftSize->metrics.x_ppem / (float)(*ftFace)->units_per_EM);
                      
          return static_cast<int>(width);
      }
      else
      {
          return ftSize->metrics.max_advance >> 6;
      }
  }
  
  
  int FTSize::Underline() const
  {
      return 0;
  }
  

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